JPH09246778A - Electromagnetic shielding building and shielding unit - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] Electromagnetic shielding of a window can be handled easily and at low cost, and can be flexibly responded to renewal. SOLUTION: In an electromagnetic shield building in which an electromagnetic shield layer made of an electromagnetic shield material is formed to form an electromagnetic shield space independent from the outside, a window shield unit 3 in which a transparent body and an electromagnetic shield film are superimposed on a metal frame is used as a sash frame. The glass is attached to the inside of the sash frame 1, and glass having an ultraviolet ray cutting performance is used for the sash frame 1, or the ultraviolet ray shielding film is stacked on the sash frame side of the electromagnetic shielding film. In addition, the size of the ultraviolet cut film is made smaller than the electromagnetic shield film so that the electromagnetic shield film is sandwiched between the sash frame and the metal frame by the outer peripheral part and screwed, and the electromagnetic connection is made dense to make the transparent body and the electromagnetic body. In order to cope with air leakage due to the shielding film and temperature rise, minute air holes penetrating the UV cut film were provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic shielding building which is covered with an electromagnetic shielding layer made of an electromagnetic shielding material to form an electromagnetic shielding space independent from the outside, and a shielding unit attached to the inside of a sash frame thereof.

[0002]

2. Description of the Related Art In many office buildings, LANs and other communication lines are used to construct their own communication information processing systems. When such a system becomes large-scale, securing a communication line becomes a problem, and the wiring of cables becomes complicated, and when the room or the device is rearranged, the amount of work for changing the wiring becomes large. Therefore, the adoption of a wireless communication system using radio waves is also attracting attention as one method.

[0003] However, when a radio communication system using radio waves is adopted, regulations of the Radio Law regarding the frequency band to be used pose a problem. Therefore, in order to freely select and set the frequency band to use and adopt a unique wireless communication method without being restricted by the Radio Law, the space inside the building was electromagnetically shielded from the outside. Construction of an electromagnetic shielding building is indispensable. The applicant has already disclosed such an electromagnetic shielding building in, for example, Japanese Patent Publication No. 6-99972, Japanese Patent Publication No. 6-99973, Japanese Patent Publication No. 7-16118, and Japanese Patent Publication No. 6-76706. And Japanese Patent Publication Nos. 6-33971 and 6-33699, and 6-1382.
Japanese Patent Publication No. 6-63407 and Japanese Patent Publication No. 5-79790 disclose a structure for shielding a doorway of a building.
Japanese Patent Publication No. 3-55857 discloses a structure for shielding a window opening. In addition, Japanese Patent Publication No. 3-62320, Japanese Patent Publication No. 3-45772, and Japanese Patent Publication No. 3-6231.
No. 8 and Japanese Patent Publication No. 5-34159 propose a shielding structure for ceilings and layers.

As seen in these proposals, an electromagnetic shielding building uses an electromagnetic shielding material for a frame or a wall structure, and further uses an electromagnetic shielding material for windows, entrances, and other openings along the outer wall of the building. By covering the entire surface with the electromagnetic shielding material, the space in the building can be configured as one electromagnetic shielding space independent of the outside. In addition, the interior of the building is not limited to one electromagnetic shielding space, but each floor is separated by an electromagnetic shielding material on the upper and lower ceilings and floors, or by partitioning walls between rooms on each floor with an electromagnetic shielding material. Alternatively, a plurality of independent electromagnetic shielding spaces can be formed for each room.

[0005]

In the above-mentioned electromagnetic shield building, when the window opening is to be electromagnetically shielded, the electromagnetic shield layer is made of a conductive material such as metal on one or both sides of the window glass. A thin film is used.
In such a glass, the electromagnetic shielding layer is a limited material such as a conductive material, and thus the shade of the glass is also determined by the material. Therefore, there is a problem that it may be difficult to balance the color tone in terms of design in relation to the color tone of the outer wall of the building.

When an existing building is to be renewed as an electromagnetically shielded building, of course, since the body does not have electromagnetic shielding performance, metal mesh, metal foil, conductive material, etc. are attached to the walls, floor and ceiling. A sheet using a conductive fiber, an electromagnetic shielding material such as a conductive paint is attached between the inner surface and the interior material, and the window opening can be realized by replacing the glass with an electromagnetic shielding layer. Since there are various types of window glass fitted into the window opening, including double-layer glass, there is a problem in that it is complicated to deal with them. Further, in the case of glass having an electromagnetic shielding layer, there is also a problem that the tint cannot be freely selected as described above.

Thus, in order to electromagnetically shield an existing building, it is difficult to take measures against the window part in particular. Moreover, since the current electromagnetic shielding glass is a multi-layer type, the sash groove width of the existing building can be reduced. Often does not enter. In addition, the electromagnetic shielding glass has various problems such as being expensive.

[0008]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and is to enable electromagnetic shielding of a window portion to be handled simply and at low cost, and to be flexibly responded to renewal. .

To this end, the present invention provides a shielding unit in which a transparent member and an electromagnetic shielding film are superposed on a metal frame in an electromagnetic shielding building which is covered with an electromagnetic shielding layer made of an electromagnetic shielding material to form an electromagnetic shielding space independent from the outside. Is attached to the inside of the sash frame of the opening, and the sash frame is made of glass having an ultraviolet ray cutting performance, or the ultraviolet ray shielding film is laminated on the sash frame side of the electromagnetic shielding film. is there.

Further, the shielding unit is attached to the inside of the sash frame of the opening of the electromagnetic shielding building which is covered with an electromagnetic shielding layer made of an electromagnetic shielding material to form an electromagnetic shielding space independent from the outside. And an electromagnetic shielding film and an ultraviolet shielding film are overlapped, and the size of the ultraviolet shielding film is smaller than that of the electromagnetic shielding film so that the electromagnetic shielding film is sandwiched between the sash frame and the metal frame with the outer periphery and screwed. It is characterized in that it is made small and has minute air holes penetrating the transparent body, the electromagnetic shielding film, and the ultraviolet cut film.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a shielding structure of a window portion in an electromagnetic shielding building according to the present invention, FIG.
1 is a view showing an embodiment of a shielding unit according to the present invention, 1 is a sash frame, 2 is a window glass, 3 is a window shielding unit, 4 is a backup material, 5 is a seal ring material, 6 is a setting block, 7 Is a mounting screw, 11 is a metal frame, 12 is a transparent body, 13 is an electromagnetic shielding film, and 14 is an ultraviolet cut film.

In FIG. 1, a sash frame 1 is a normal window frame made of a conductive metal material, for example, an aluminum sash.
The window glass 2 is an ordinary one using various kinds of glass having no electromagnetic shielding performance, and the setting block 6, the backup material 4, and the seal ring material 5 are housed and attached in the groove of the sash frame 1. The window shielding unit 3 is a unit in which a transparent body, an electromagnetic shielding film, and an ultraviolet cut film are superposed on a metal frame, and is attached to the inside of the sash frame 1 by using attachment screws 7. Therefore, even with an existing window in which glass is fitted into the window frame of the aluminum sash, it is possible to secure electromagnetic shielding performance without replacing the glass simply by attaching it to the window frame of the window opening by the window shielding unit 3. it can. In this way, the electromagnetic shielding building shields the window opening in this way, and the walls, ceiling, and floor each form an electromagnetic shielding layer using an electromagnetic shielding material and electrically integrate to cover the internal space and the external space. It is configured to be shielded from. Electromagnetic shielding materials include metal mesh, metal foil (film), non-woven fabric, sheets made of other conductive fibers, conductive paints, etc. Form a shielding layer. Also, the electromagnetic shielding material can be integrated into the structural material,
A steel plate serving as an electromagnetic shielding material such as a deck plate of a floor slab may be used as the structural material itself.

As shown in FIG. 2, the window shielding unit 3 has a transparent body 12 attached to a metal frame 11 such as an aluminum frame.
Further, an electromagnetic shielding film 13 and an ultraviolet ray shielding film 14 are superposed on the transparent body 12.
The transparent body 12 is made of, for example, acrylic and has a hard durability. And the ultraviolet cut film 1
4 is an ultraviolet cut film 14 by making the size smaller than the electromagnetic shielding film 13 as shown in the figure.
When the side is attached to the sash frame 1 as shown in FIG. 1, the electromagnetic shielding film 13 can be directly sandwiched between the metal frame 11 and the sash frame 1 and tightened. for that reason,
The electromagnetic shielding film 13 and the sash frame 1 can be reliably connected, and by connecting the sash frame 1 to an electromagnetic shielding layer on a wall surface (not shown), the electromagnetic shielding film on the wall surface and the electromagnetic shielding film 13 of the window shielding unit 3 can be connected. Can be electrically integrated with the electromagnetic shielding layer. Further, by providing a small hole having a diameter of, for example, about 1 mm on the laminated surface of the transparent body 12, the electromagnetic shielding film 13, and the ultraviolet cut film 14, it is possible to provide a ventilation hole corresponding to the expansion of the air inside the glass. The number of such holes may be 20 to 30 or less or more depending on the size of the window, region, climate, and the like.

Note that the present invention is not limited to the above-described embodiment, and various modifications are possible. For example, in the above-described embodiment, as the window shielding unit, the one in which the transparent body, the electromagnetic shielding film, and the ultraviolet cut film are superposed on the metal frame is used, but the opening other than the window serves as the shielding unit inside the opening frame. May be used in the same way,
When using UV cut glass for window glass,
A window shielding unit without a UV cut film may be used. Further, even when an existing building whose body does not have electromagnetic shielding performance is renewed as an electromagnetic shielding building, it can be similarly applied to a new building using an electromagnetic shielding material as a shielding structure. The film has recently been improved in durability, and it can be expected that the film which shields the sun rays can maintain its performance for 10 years or more. Such a film having electromagnetic shielding performance is a conductive film, and this was used in combination with a sunlight reflecting film. However, not only that, but a sunlight reflecting cut film having electromagnetic shielding performance is used for electromagnetic shielding. You can also

[0015]

As apparent from the above description, according to the present invention, the window of the existing building can be left as it is, and the window shielding unit can be attached to the inside of the sash frame. Electromagnetic shielding can be realized. Moreover, the cost of the window portion is 1/8 to 1/1 as compared with the current construction method using the expensive multi-layer type electromagnetic shielding glass.
It can be reduced to about 0. Therefore, it is possible to easily cope with the repair of the window at low cost, and the structure of the double window in which the window shielding unit is attached inside the window glass can be expected to have the heat insulating effect. Furthermore, since it is attached to the sash frame as a single window shielding unit, it can be manufactured at the factory, which leads to shortening the construction period and improving reliability.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a window shielding structure in an electromagnetic shielding building according to the present invention.

FIG. 2 is a diagram showing an embodiment of a window shielding unit according to the present invention.

[Explanation of symbols]

1 ... Sash frame, 2 ... Window glass, 3 ... Window shielding unit, 4
... Backup material, 5 ... Seal ring material, 6 ... Setting block, 7 ... Mounting screw, 11 ... Metal frame, 12
... Transparent body, 13 ... Electromagnetic shielding film, 14 ... Ultraviolet shielding film

Claims (5)

[Claims] 1. In an electromagnetic shield building in which an electromagnetic shield layer made of an electromagnetic shield material is formed to form an electromagnetic shield space independent from the outside, a shield unit in which a transparent body and an electromagnetic shield film are superposed on a metal frame is provided in an opening. An electromagnetic shielding building characterized by being installed inside the sash frame. 2. The sash frame is made of glass having an ultraviolet ray cutting performance, or an ultraviolet ray shielding film is laminated on the sash frame side of the electromagnetic shielding film.
The electromagnetic shielding building described. 3. A shield unit attached to the inside of a sash frame of an opening of an electromagnetic shield building which is covered with an electromagnetic shield layer made of an electromagnetic shield to form an electromagnetic shield space independent from the outside, the transparent unit being a metal frame. A shielding unit characterized by stacking an electromagnetic shielding film and an ultraviolet cut film. 4. The size of the ultraviolet cut film is made smaller than that of the electromagnetic shielding film so that the electromagnetic shielding film is sandwiched between the sash frame and the metal frame at the outer peripheral portion and screwed. Shielding unit. 5. The shielding unit according to claim 3, wherein minute air holes penetrating through the transparent body, the electromagnetic shielding film and the ultraviolet cut film are provided.